Port mirroring

Port Mirroring is used to configure, enable, and disable the monitored port. When enabled, network packets being sent and/or received on a target port are duplicated and sent to a monitor port. By attaching a network analyzer to the monitor port, you can collect detailed information about your network performance and usage. Port mirroring is disabled by default.

NOTE: See the “Troubleshooting tools” appendix in the N8406-022 1Gb Intelligent L2 Switch Application Guide for information on how to use port mirroring.

The following table describes the Port Mirroring Configuration commands.

Table 104 Port Mirroring Configuration commands

Command

Description

[no]

port-mirroring

Enables or disables port mirroring.

enable

Command mode: Global configuration

show

port-mirroring

Displays current settings of the mirrored and monitoring ports.

 

 

Command mode: All except User EXEC

Port-based port mirroring

The following table describes the port-based Port Mirroring Configuration commands.

Table 105 Port Mirroring Configuration commands

Command

Description

port-mirroring monitor-port <port

Adds the port to be mirrored. This command also allows

number> mirroring-port<port number>

you to enter the direction of the traffic. It is necessary to

{inoutboth}

specify the direction because:

 

If the source port of the frame matches the mirrored

 

port and the mirrored direction is ingress or both

 

(ingress and egress), the frame is sent to the mirrored

 

port.

 

If the destination port of the frame matches the

 

mirrored port and the mirrored direction is egress or

 

both, the frame is sent to the monitoring port.

 

Command mode: Global configuration

no port-mirroring monitor-port <port

Removes the mirrored port.

number> mirroring-port<port number>

Command mode: Global configuration

no port-mirroring monitor-port <port

Deletes this monitor port.

number>

Command mode: Global configuration

show port-mirroring

Displays the current settings of the monitoring port.

 

Command mode: All except User EXEC

Uplink Failure Detection configuration

Uplink Failure Detection (UFD) supports network fault tolerance in network adapter teams. Use these commands to configure a Failure Detection Pair of one Links to Monitor (LtM) group and one Links to Disable (LtD) group. When UFD is enabled and a Failure Detection Pair is configured, the switch automatically disables ports in the LtD if it detects a failure in the LtM. The failure conditions which are monitored in the LtM group include port link

state moving to down, or port state moving to Blocking if Spanning Tree Protocol is enabled.

The following table describes the Uplink Failure Detection (UFD) Configuration commands.

Table 106 Uplink Failure Detection Configuration commands

Command

Description

ufd enable

Globally turns Uplink Failure Detection ON.

 

Command mode: Global configuration

no ufd enable

Globally turns Uplink Failure Detection OFF.

 

Command mode: Global configuration

show ufd

Displays the current Uplink Failure Detection configuration parameters.

 

Command mode: All

Configuration Commands 89

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NEC N8406-022 manual Port mirroring, Uplink Failure Detection configuration, Port-based port mirroring

N8406-022 specifications

The NEC N8406-022 is a robust and versatile networking device designed primarily for organizations requiring high-performance connectivity solutions. As part of NEC's extensive portfolio of networking equipment, the N8406-022 is engineered to address the demands of modern enterprise environments, ensuring seamless communication and data processing capabilities.

One of the key features of the N8406-022 is its multi-layer switching functionality. This device supports Layer 2 and Layer 3 switching, allowing for efficient data routing and reducing latency within local area networks (LANs). This capability is particularly beneficial for businesses that rely on real-time data access and transfer, such as those in financial services, media, and telecommunications.

The N8406-022 is equipped with advanced Quality of Service (QoS) features that help prioritize critical network traffic. This means that voice and video data packets can be given precedence over less time-sensitive information, ensuring that essential communication remains clear and uninterrupted. This is crucial for organizations leveraging VoIP and video conferencing solutions.

In terms of connectivity, the NEC N8406-022 offers a variety of ports, including multiple Gigabit Ethernet ports, which facilitate high-speed data transfer and enable seamless integration into existing network infrastructures. The device may also include 10 Gigabit SFP+ ports, providing the flexibility for high-capacity uplinks to support bandwidth-intensive applications and storage solutions.

Security is another focal point of the NEC N8406-022, with integrated features such as VLAN support, access control lists (ACLs), and port security measures. These capabilities protect sensitive data from unauthorized access and ensure that only legitimate users and devices can connect to the network.

Moreover, the N8406-022 often incorporates advanced energy-efficient technologies that minimize power consumption without compromising performance. This not only contributes to operational cost savings but also supports organizations in their sustainability efforts.

With its combination of performance, security, and energy efficiency, the NEC N8406-022 stands out as a reliable networking solution suitable for a wide range of enterprises looking to enhance their connectivity and operational efficiency. Whether deployed in data centers or as part of a corporate network, this device is built to meet the evolving demands of today’s digital landscape.